Lock.



PATENTED JUNE 14, 190.4.

N. G. GREGORY.

LOCK.

APPLICATION FILED JAN. 23, 1904.

no MODEL.

I UNITED STATES Patented June 14, 1904:. I

PATENT ()FFICE.

NAOMI O. GREGORY, OF DIXON SPRING, TENNESSEE, ASSIGNOR OF ONE- THIRD TOJOHN PARKER, OF DIXON SPRING, TENNESSEE.

' LOCK.

SPECIFICATION forming part of Letters Patent No. 762,582, dated June 14,1904.

Application filed January 23,1904. Serial No. 190,385- (No model.)

To all whom it may concern:

, Specifically the lock comprises the usual casing and a lock-boltmovable within the said caslng and provided with peculiar engaging means1n the form of spring members carried thereby, which engage the casingat an aseer-.

tained .point in the movement of the lock-bolt and prevent displacementof said bolt.

For a full description of the invention and the merits thereof and alsoto acquire a knowledge of the details of construction of the means forefiecting the result reference is to be had to the following descriptionand drawings hereto attached.

While the essential and characteristic features of the invention aresusceptible of modification, still the preferred embodiment of theinvention is illustrated in the accompanying drawings, in which Figure 1is a perspective view of a lock embodying the invention. Fig. 2 is avertical longitudinal sectional view through the lock. Fig. 3 is adetail perspective view of the lockcasing. Fig. 4 is a perspective viewof the lock-bolt. Fig. 5 is a detail view of the key, peculiarlyconstructed for the purpose of disengaging the loek-bolt. Fig. 6 is atransverse sectional view showing the key in place.

Corresponding and like parts are referred to in the followingdescription and indicated in all the views of the drawings by the samereference characters.

Referring to the drawings, the invention 7 comprises the casing which isof approximately oblong form in the preferable adaptation of the device.From the casing l are proif desired, as will be noted as the memjectedthe spaced bosses 2, which are provided with openings3, through whichthe lock-bolt 4 passes in its movement upon the casing. One end of thecasing is closed, as shown at 5, and this end is provided with thekey-opening 6. The other end of the casing is open,

the lock-bolt being provided with an end plate 7, which when thelock-bolt is secured to the casing in looking relation thereto closesthe open end of the casing thereof. Within the casing and disposed ashort distance from the open end of same are located a plurality of lugs8, which lugs cooperate to prevent displacement of the lock-bolt 4, or,in other words,

constitute the engaging means carried by the casing, which locks thelockbolt thereto. Projected from the end plate 7, which is integrallyformed with the lock-bolts, and extending in approximately parallellingrelation to the lock-bolt are spaced arms 9 and a lower arm 10, locatedbelow the spaced arms 9 and approximately intermediate same in relativeposition. The arms 9 and 10 carry the engaging means of the lock-bolt,and said engaging means comprisesthe spring members 11. The members 11comprise spring catches or plate secured at one end to the respectivearm upon which it is disposed, the other end being freely movable forspring engagement or disengagement. The movable ends of the members 11are adjacent the end plate 7 of the lock-bolt 4, and the said ends areadapted to engage the lugs 8 within the casing, as before described. Theupper edges of the spring members 11, which are secured to the lower arm10, project above the upper side of the said arm and being spaced apartform a guide-channel 12, which cooperates with the key 13, as will bereadily seen hereinafter.

The key used in connection with my lock mechanism is of a specialstructure adapted to compress the spring members carried by the arms 10and 11 and by such action permit disengagement of the said members fromthe lugs 8 within the casingla-nd unlocking movement of the lock-bolt4E. The key comprises in its preferred form a handle 14 and a keybar 15,pivoted betweenthe spaced arms of the handle so as to fold between saidarms when out of use. A bail 16 may also be provided to permitattachment of thekey to a ring or other analogous device. The key-bar isprovided upon the under side thereof with three ribs 17, the outermostof which ribs are adapted to compress the spring members 11 of the lowerarm and cause disengagement thereof from the lugs within the casing 1.The central rib forms a guide-rib, which is received in the channel 12,formed by the disposition of the spring members of the lower arm 10.Grooves 18 in the sides of the key-bar receive the arms 9, andthe'spring members carried by these arms are compressed when receivedwithin these grooves 18 in a manner which will be apparent. Thecompression of the several spring members 11 is of course simultaneousfor reasons obvious. The spring members 11 being disposed angularly asregards those carried by the upper and lower members 10 and 11necessitate the use of a special key in order that they may besimultaneously disengaged. It is contemplated that the angulardisposition of the members 11 may be varied in different locks, so as toclearly differentiate same from each other and prevent the use of asingle key for more than one lock mechanism. The key, of course, wouldhave its construction modified in accordance with the construction ofthe lock.

The look as described above is one for personal use or for transientapplication. To enable the lock to be permanently attached, thestructure of the casing would be somewhat modified, and it is objectiveto manufacture the lock either for permanent attachment or of a formsimilar to that shown herein.

The movement of the key to cause disengagement of the spring members 11also serves to project the lock-bolt from the casing when said membersare disengaged.

Having thus described the invention, what is claimed as new is 1. In alock, the combination of a casing having spaced bosses projectedtherefrom and open at one end, a slide-bolt movable in said casing andprovided with an end plate closing the open end of the casing, spacedsupportingarms projected from the end plate, spring engaging memberssecured to the spaced supporting-arms aforesaid, another supportingarmprojected from the end plate and disposed beneath the spacedsupporting-arms above mentioned and about intermediate same, springengaging members carried by the lower supporting-arm, and lugs projectedfrom the inner side of the casing and adapted to be engaged by thespring members of the support ing-arms aforesaid.

2. In a lock, the combination of a casing closed at one end and open atthe other end, spaced bosses projected from the casing, a slide-boltslidably mounted in said casing and provided with an end plate adaptedto close the open end of the casing, spaced supportingarms projectedfrom the inner side of the end plate aforesaid, spring engaging memberssecured to the upper sides of the said supporting-arms, anothersupporting-arm projected from the end plate and disposed beneath thefirst-mentioned supporting-arm and at a point about intermediate ofsame, spring engaging members secured to the sides of the lowersupporting-arm and having their upper portions projected above the saidsupporting-arm to form a longitudinal groove, lugs projected from theinner side of the casing adjacent the upper end thereof and adapted tobe engaged by the spring members of the supportingarms, the closed endof the casing being provided with a key-opening.

In testimony whereof I aifix my signature in presence of two witnesses.

NAOMI O. GREGORY. [L. s.]

WVitnesses:

L. A. GREGORY, J. W. DUFFY.

